<u>Given:</u>
Frequency (ν) = 319 THz
<u>To determine:</u>
The wavelength corresponding to the given frequency
<u>Explanation:</u>
Wavelength (λ) and Frequency(ν) are related as:
λ = c/ν
where c = speed of light = 3*10⁸ m/s
Now:
SI unit of frequency is Hertz (Hz) also expressed as cycles per second
i.e 1 Hz = 1 s⁻¹
1 Terahertz (THz) = 10¹² Hz
therefore the given frequency ν = 319 *10¹² s⁻¹
λ = 3 * 10⁸ ms⁻¹/319 *10¹² s⁻¹ = 940 * 10⁻⁹ m
since 1 nanometer (nm) = 10⁻⁹ m
The wavelength is λ = 940 nm
Ans: The infrared wavelength = 940 nm
They are classified as Decomposers
Answer:
The water was evaporated from the sun only leaving salt in the cup
Explanation:
the sun done its cycle and the salt was left
Answer:
Pure Water
Explanation:
The common ion effect describes the effect on equilibrium that occurs when a common ion (an ion that is already contained in the solution) is added to a solution. The common ion effect generally decreases solubility of a solute(Khan Academy).
NaCl, AgNO3, KCl, BaCl2 solutions all have a common ion with AgCl. As a result of this, AgCl will be much less soluble in these solvents than it is in pure water.
Therefore, AgCl will have the highest solubility in pure water compared to all the solutions listed above.
Answer:
The correct answer is D
Explanation:
Step 1: Data given
Volume of helium = 500 L
STP:
⇒ 25°C = 298 Kelvin
⇒ 1.00 atm
⇒ 22.4 L
This means 1 mole of Helium gas at STP has a volume of of 22.4 L
Since 22.4 L of Helium gas = 1 mol
Then 500 L of helium gas = (500L/ 22.4L) * 1 mol = 22.3 mol
The correct answer is D